摘要
在后张法预应力混凝土结构中,传统的都是采用孔道压浆防止预应力筋锈蚀,这种方法普遍灌浆不密实,给工程留下隐患。杭州湾跨海大桥工程是我国罕见的大型海洋工程,工程的安全使用寿命对工程的长期经济效应极为重要。了解真空压浆技术在该桥的研究、应用及较为完善的工艺。
In the structure of post-tensioning prestressed concrete, the anti-rust for prestressed bars is done by means of the traditional drill-compressing grouting,but this method results in less density,which does damage ccured to projects.Hangzhouwa transoceanic extra-long bridge is the unique project in China, its safety is very vital for the long-term economic profits of the this bridge.The application, research and the comparatively perfect technology of prestressed pipe vacuum grouting technology are stated.
出处
《混凝土》
CAS
CSCD
北大核心
2008年第7期94-96,102,共4页
Concrete
关键词
真空辅助压浆
饱满度
密实性
后张法预应力混凝土
vacuum assistant grouting
saturation
density
post-tensioning prestressed concrete
